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| author | bulia byak <buliabyak@gmail.com> | 2007-03-02 17:10:33 +0000 |
|---|---|---|
| committer | buliabyak <buliabyak@users.sourceforge.net> | 2007-03-02 17:10:33 +0000 |
| commit | 0853a656cfacf9a14a486bb03c90ea73702dbcf2 (patch) | |
| tree | db37e7b701c5b77a17b2baa9e21f9f07016ee222 /src | |
| parent | fix comment to match code (diff) | |
| download | inkscape-0853a656cfacf9a14a486bb03c90ea73702dbcf2.tar.gz inkscape-0853a656cfacf9a14a486bb03c90ea73702dbcf2.zip | |
fix an error in rounding negative coords
(bzr r2503)
Diffstat (limited to 'src')
| -rw-r--r-- | src/selection-chemistry.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/selection-chemistry.cpp b/src/selection-chemistry.cpp index 33f14e050..680a2e871 100644 --- a/src/selection-chemistry.cpp +++ b/src/selection-chemistry.cpp @@ -2504,11 +2504,14 @@ sp_selection_create_bitmap_copy () // Calculate the matrix that will be applied to the image so that it exactly overlaps the source objects NR::Matrix eek = sp_item_i2d_affine (SP_ITEM(parent_object)); NR::Matrix t; + + double shift_x = bbox.x0; + double shift_y = bbox.y1; if (res == PX_PER_IN) { // for default 90 dpi, snap it to pixel grid - t = NR::scale (1, -1) * NR::translate ((unsigned) (bbox.x0 + 0.5), (unsigned) (bbox.y1 + 0.5)) * eek.inverse(); - } else { - t = NR::scale (1, -1) * NR::translate (bbox.x0, bbox.y1) * eek.inverse(); + shift_x = round (shift_x); + shift_y = -round (-shift_y); // this gets correct rounding despite coordinate inversion, remove the negations when the inversion is gone } + t = NR::scale(1, -1) * NR::translate (shift_x, shift_y) * eek.inverse(); // Do the export sp_export_png_file(document, filepath, |